This is something MK & I started doing in a pub whilst in England... I made a remark along the lines of "Darling, you know I only have eyes for you" which made her smile, until I paused and added....

"Oh, and Clare Grogan"

[pause]

"...and Jennifer Morrison" (Cameron from "House")

[pause]

"...and pre-botox Kylie"

It became a funny game between us thereafter. In the middle of a conversation about something entirely unrelated, one of us would suddenly say "oh...and...." mentioning some other celebrity or non-celebrity hottie.